Potassium Dichromate GR 500grm
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 104864.0500
Stock: In Stock
Description
| Catalogue Number | 104864 |
| Replaces | PX1445-2; PX1445 |
| Synonyms | Potassium bichromate, Potassium pyrochromate |
Product Information
| CAS number | 7778-50-9 |
| EC index number | 024-002-00-6 |
| EC number | 231-906-6 |
| Grade | ACS,ISO,Reag. Ph Eur |
| Hill Formula | Cr₂K₂O₇ |
| Chemical formula | K₂Cr₂O₇ |
| Molar Mass | 294.19 g/mol |
| HS Code | 2841 50 00 |
Physicochemical Information
| Boiling point | >500 °C (1013 hPa) |
| Density | 2.7 g/cm3 (20 °C) |
| Melting Point | 398 °C |
| pH value | 3.6 (100 g/l, H₂O) |
| Bulk density | 1250 kg/m3 |
| Solubility | 115 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 90.5 mg/kg |
| LD 50 dermal | LD50 Rat 1170 mg/kg |
Storage and Shipping Information
| Storage | Store below +30°C. |
Specifications
| Assay (iodometric, calc. on dried substance) | ≥ 99.9 % |
| Insoluble matter | ≤ 0.005 % |
| Chloride (Cl) | ≤ 0.001 % |
| Sulfate (SO₄) | ≤ 0.005 % |
| Ca (Calcium) | ≤ 0.002 % |
| Cu (Copper) | ≤ 0.001 % |
| Fe (Iron) | ≤ 0.001 % |
| Na (Sodium) | ≤ 0.02 % |
| Pb (Lead) | ≤ 0.005 % |
| Loss on drying (130 °C) | ≤ 0.05 % |
